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In this chemistry activity, learners use the lowered freezing point of water to chill another mixture (ice cream) to the solid state. Learners will record the temperature of the ice before and after mixing it with the ice cream ingredients and discover that adding a solute to a solvent lowers the freezing point of that solvent (also known as a colligative property). This activity can also be used to introduce learners to crystallization. [Activity is publicly available through a web crawler capture on Archive.org.]
- Under 5 minutes
- 10 to 30 minutes
- $1 - $5 per student
- Ages 6 - 18
- Activity, Experiment/Lab Activity
- English
Quick Guide
Materials List (per student)
- 1 quart Ziploc™ bag
- 1 gallon Ziploc™ bag
- 1/2 cup milk
- 1/2 cup whipping cream
- 1/4 cup sugar
- 1/4 teaspoon vanilla flavoring
- sodium chloride or rock salt
- ice
- thermometer
- measuring cups (1, 1/2, and 1/4 cups)
- Styrofoam™ cups
- plastic spoons
Subjects
-
Mathematics
-
Data Analysis and Probability
- Data Analysis
- Data Collection
- Measurement
-
Data Analysis and Probability
-
Physical Sciences
-
Heat and Thermodynamics
- Heat and Temperature
-
Chemistry
- Solutions
-
States of Matter
- Changes of Phase
- Structure and Properties of Matter
-
Heat and Thermodynamics
-
The Nature of Science
-
The Scientific Process
- Conducting Investigations
- Gathering Data
- Formulating Explanations
-
The Scientific Process
Informal Categories
- Food and Cooking
Audience
To use this activity, learners need to:
- see
- read
- taste
- touch
Learning styles supported:
- Involves hands-on or lab activities
Other
This resource is part of:
Access Rights:
- Free access with registration